Assembly fixture



C. L. LEE

ASSEMBLY FIXTURE June 9,- 1925.

5 Sheets-Sheet 2 Filed April 2, 1925 fnuen 75F June 9, 1925.

1,541,058 0. L. LE-E ASSEMBLY FIXTURE Filed April 2, 1923 5 Sheets-Sheets J09 l n III ZZ/J ZTIESEEE- [EL/E2720? Jun 9, 1925.

[1/12 nesss 'c. L. LEE

ASSEMBLY FIXTURE Filed April 2, 1925 5 Sheets-Sheet 4 c. L. [,EEASSEMBLY FIXTURE June 9, 1925. 1,541,058

FiledAprii 2, 925 5 Sheets-Sheet 5 upon thecylinder support'23- andprovided ring 31 Which is with a. notch. 33 adapted to be received by apin 34carried by the support 23. Astigment gear 35" attached to halfring30 engages a segment gear 36 attached to the halfpivoted at 37 upon thesupport 23. Half-ring 31 is provided "witha :notch 38 adapted to bereceived by the'pin' 34. Movement of one. of the half-rings causesthe'niovement of the other through the gearing. VVhenthe, haltringsstrike against the pin 34 the half-rings .W-ill be spaced from theexterior valLof. the cylinder 25 for the. purposeto bedescribed later.-'lhehalf-rings'30 and 3l,a-re ;held-jin position shown in Fig. 31 by1neans of-tlie fork lever 40 pivoted port 23 and provided: witlrlugs42and 43 adapted to preventthe outivard movement of the half-rings 30and 31 respectively. These. half-rings provide means. for embracing a.sheet of bonding materia.l tobe placed around the cylinder and; also;"provides@ashelf for supporting the fin illtllfillal.

shelf is located at a predetermined distance from the. base and.topof,the'cylinder...' a 1 .In) order toyieldingly clamp thesheetlotbonding:material; shown {at in Fig.7 5, and in; Fig. 3, about thecylinder each halfring is provided with .an arm 46 pivotally mounted at47 each arm being, yieldingly pressed towards the cylinder by meansof aspring 48 bearingagainst astop 49; Normally a lug;50 provided on eacharm 46, extend s insidethe inner periphery 51 of each half-rin as shownin Fig. A notch 52 is provic ed for receiving' the lug50 .When the armis caused lo move v inner periphery 51. lVhen thelugs- 50 are in theposition shown in. Fig. the-arms 4(3 \villbear against the stops 49.1 Vihenthe half-rings are clamped in the positionshown in F ig. 3 the lugs50 will bear against the sheet of bonding material 4 5 Wrapped about thecylinder to hold this material itemporarily in place about the cylinderand to prevent it from sliding down along the cylinder. e g Q Afferthebonding sheet 45' has been socured in position the finmaterialdesignated as a whole by numeral in F 2 is placed upon thehalf-rings 30 and31 and Wrapped about the cylinder 25 and bonding means45 as shown in Fig. 2.; The half-rings 3O and 31 :provide forsupporting-the.fin material and'for locating it correctly"with respectto the upper end of the cylinder.

The fin material and bonding sheet are held temporarily in position byanyfsuib able clamping means such as soft iron binding Wires 61. Inorder to space these Wires a-nd hold them ternporarily While they are ibeing wrapped about the-cylinder and tin material and arebeing securedby pushing 64"i1pon bracket at 41 upon. the sup- This away; from theThen there 1s a ,grou1 the ends together, thereis provided a block 62 havinggrooves '63,:eaclrada-pted to receive a Wire 61; This blockispivoted at 65secured to the base The bloclris providedfwigth anoperating handle 66 andfisheld ateither inoperating andnonroperatingpositions shown at Figs.

of a spring 1- and i 4 respectively by means attached tdtlie bracket65.v e Tense this apparatus it is first arranged as shown in Fig. 1,thenthe cylinder 25 1's I placed: in 'position'over the post 24 with aportion of itsbaselocated by the fixture 2,7. 1

material is Wrapped around the cylinder and held With oneihand while 7The bonding the other handrotates the half-rings 30 and 31 to theposition shown in' Fig. 2 and the half-rings are held. in..place bymeans of lever 40. Thefin material 60- is placed upon thepshelfprovidedbythe half-rings 30 and 31 and is jwrappedjabo iti the cylindenBind ing;wires are laid" in 'the groove63in the blocki62 and the blockis moved tofthe posie tionshown inifFigsQ2and The binding Y .7

ires 61 are xv'rapped about the fin maria GOfand th ends aretwistedtogether to hold the fin gm a terialinplace.

he appara us. are m ral and; assembly to beremovedi- -Forconvenience'in"manipulation the cylof ;p'osi .-tions by. means of sieves70 having a his; adapted to 'e'nter'one ofa series of notchesZ2;providedinjthe support 23. The levei".. 70' is pivoted at 73 andyieldingly pressed ;toiv.ard the support 23 by means ol aspringJ74fQ e 7l'lllie vtori'nfofapparatus shown in Figs. 2 and'j4 canlbe used Withifin" material having tin loops-of uniformj height'or of differentheightssuchasthefin material 80, shown in F ig. 6. lVliere fin materialsuch as-shoivn at is used itis necessary ,1 to locate this material incorrectangular relation with respect to the cylinderjasWellas nally.QNVith this obje'ct' in view. the form of the invention shown in theremaining views has'been provided. The liumaterial 80 includes aplurality of fins such 21531 which project'the [maximum distance from,

the base portions 82bit the fin material.

which are gradually diminished in height that is, n radial wm'ojectionfrom' the in bases. The fin material is flattened a oil soto speak as.Willbe apparent from F ig. 11 more particularly in order to permit thecylinders to be grouped togetherin ports of eachpair of pairs with theintake cylinders closely adjacent as disclosed in the copendingapplication of Charles F.

Kettering. Serial No. 417,095,:filed October 15,1920. 'lhey finsindicated at 84 in F ig 6 e lof fins. indicated at T-henfthe p arts of;p back to theposii tioii shown inFl permitting thecylinder longitudilllU30* and 31*, these springpressedf arrriS time:

mar fi ii handle: 7

'zidapted to fit war a pro;

: cylinder bosses 92 incorrect angular align v nient therewith.

It is desirable that thegroup oifiattened fins 83 shall be arrangeddiametrically opposite the group 8% in order that, when the fin materialis assembled a plane tangent to lelism, the other two pins 115 of thegroup shownin Fig. 7 are each inserted through.

a bushing 111 and through a loop of the fin ii'iaterial, the fininaterialbeingarranged so that one of saidpins will pass through a loophavinga certain relation with respect to the group or shorter fins 83and 84. Since the fins-are not all the sameheight,

that is, project the same distance from the center of thecylinder'itis'not desirable to use simply a binding wire" or temporarily securingthe fin into position, because as explained in the copending applcationot Charles F. Kettering, Serial No. 514,014

filed November 9, 1921, it is desirablethat each ofthe finbases 82 shallbepressed against the brazing material with substantially the samepressure in order that the bond between the cylinder and the fins may berendered more uniform, In the assembly shown in Flg. 2, a binding Wl1 6lapplies pressure to the fin loops of the materialGO and the fin loopsthemselves trans- 111113 pressure to thebases of the tin material.

If binding Wires are used in connection with the irregular finningtheshorter fins would not at all. receive pressure. from the binding'wires. Therefore; a number of pressure transmitting elements 120 shownin Fig. 8 are'provided for assembly with the cylinder and fin assembly.h

After the fin material has been located as described, one of theU-shapedspacing bars 120 is placed around each of the fins which areshorter than the highest fins 81' so that a circle concentric with theaxis of the cylinder would be substantially tangent to the tips oi thehighest fin loops and the tips of the spacing blocks 120. lVith thisarrangement any suitable peripherallycon-- tracting binding device canbe used such as binding wires 61 or a clamp 125 as shown in Fig. 9. Thisclamp 125 comprises itjCOll tractable split ring 126 provided with lugs127 and 128 adaptedto receive the head 129 ct a-screw 130 anda'nut131,1'espectively, as shown in Figs. 10 and 11. Oneor more of theseclamps areplacedai'ound the specing block 120, andthe screws 129areturned into the notch 131 to clamp the assembly temporarily together.I

The pins can now be removed'allowing the plate 109 to be swungintothep'osition shown in Fig. 5. The lever 100 is moved upwardlytocause .thegyokej 94 to-release the base of the cylinder Thenthe cylindercan. beren'io. ed I frointhe. assent" bling fixture.

Atterthe cyhnde s and fins assembled in themanner described 'llELVB beenremoved from the assen'ibl ng'fixture, they are ready for. subsequenttreatment norder to bond the fin materialpermanently;onto the cylin der..This treatment is] described and claimed in the copending applicationof Charles Kettering, Serial No. 514,014, filed November 9, 1921 andincludes heat- 'ing the cylinders'to a'temperature above the meltingpoints of the bonding material and below -that of the fin material andthe cylinder material, The heating is per.-

formed in afurnace which is arranged so. that the fin material, will notbe unduly oxidized; and the fin material is previously coated with aprotecting coating. After the;

bonding operation the, temporarybindingwir'es or binding clamps areremoved and;

the; cylinder is then ready for subsequent machineoperations such asgrinding its bore and providing valvepOrtsin its head, and holes inthe'bosses 92for the push rods.

mile-the form of embodiment offthe in ventionias 'herein disclosed,constitutes. a

preferred form, it gisto be understood that other forms nightbe adopted,all coming within the scope oftheclaims whichtollow.

WVhat' I claim isas follows? 1Q Apparatusiio'r the manufacture of finnedcylinders comprising, in combination,

a support adapted to receive a cylinder, meanstor locating the cylinderwith respect to the support in a predetermined relation,

means for. supporting fin material about the cylinder, and meanstorlocating the fin materialwith respect to thelcylindei' in a predetermined .relation.

2. Apparatus for the inanufacture of finned cylinders comprising,incombination, a support adapted to receive an engine cylinder,- ineans'forsiipp'oi'ting a' continuous stripof. finin'iaterial includingaplurality of fin loops 'placed. about fthe cylinder, andmeansforflocating certaino't the fin loops.

with respect to. the engine cylinder-in a predetermined 17613131011;

Apparatus for the manufacture of finned cylinders comprising, incombination, a support adapted to receive an engine cylinder; a pair o lihalfirings pivotally mount-f ed on the supportand adapted to be movedinto cylinder encompassing position .to:

clamp a sheet of bonding material around thecylinder,

PP fort the inanufaeturef c-fi finned cylinders comprising, incombination, a support adapted to rece ve an engine cylinder; a pairof(half-rings"pivotally mount ed'on the support and adapted to be movedinto cylinder encompassing; position" to clamp. a ,sheetcf materialaround the cylinder; and a toothed, port onprd' Mei-ma v ided on eachring, ope i termeshing with the other whereby the moving of one willcause movement ,of the other.

51 Apparatus for the manufacture of finnedicylinders comprising, incombination, a support including afceiitral post adapted to receive anengine cylinder; at pairof halfrings pivotally mounted on the support inpredetermined relation to. the post and" "adapted to be moved intocylinder encompassing position to clamp asheet of bonding materialaround the cylinder and adapted to provide a locating platform for thefin material with respect to the cylinder.

6. Apparatus for the manufacture of finned cylinders comprising, incombination, a support including a central post adapted to receive anengine cylinder; a pair of halfrings pivotally mounted on the support inpredetermined relation to the post and adapted to .be moved intocylinder encoinpassing position and including yielding membersconstructed and arranged to clamp a sheet of bonding material around thecylindei' and adapted to provide a locating platform for the finmaterial With respect to the cylinder.

7. Apparatus for the manufactureof fin,

cylinders comprising in combination a cylinder support and means forclamping a sheet of bonding material about the'cylinder and. forsupportinga quantity of fin material placed about the cylinder.

' 8. Apparatus for the manufacture of fin cylinders comprising incombination a cylinder support and means for holding the cylinder inposition for clamping a sheet of bonding material about the cylinder andfor supporting a quantity of fin material about the cylinder.

9. Apparatus for the manufacture of fin cylinders comprising incombination a support for the cylinder, means for supporting a quantityof fin material about the cylinder p and means for temporarily placingand posi tioiiing one or more binding Wires for teinporarily holding thefin material in position.

10. Apparatus for the manufacture of finned cylinders comprising incombination, a support adapted to receive a cylinder,

means for locating the cylinder with respect tothe support in apredetermined relation, and means for locating fin material With respectto the cylinder in a predetermined relation.

11. Apparatus for temporarily securing to a cylinder a quantity of finmaterial including fins having fin bases to beijoined to 'the cylinder,comprising in combination spacing blocks of equallieight adapted to beplaced against the tin bases, and clamp iiig means adapted to bearagainst the spac ing blocks. 7

IZ-"AiuMi W i0 t m ora ily i e i irs to a cyl nder a cont nuous of himater al nclud ng fins of varying height, each fin having erase, c ping-1 c mbine.

t ra ing. lo k e qiw l eight ada ted 01 than-the iinaxi nu n, andclamping mea s adapted-to bear against the Spacing blocks and thisofmaxiiiium-height.' i

.13.-Apparatus for the manufacture of finned cylinders comprising,'incombination,

asupport adapted to receive anenginecylinder, including means forconcentrically "positioning the "cylinder on the support; means securedto the support andadapted .to locate the cylinder on the support andprevent rotation of said cylinder ,relative p eet ag ius the-bases offia shmte thereto; a pair of half-rings 'piv0tally1 mounted on thesupport andladaptedtobe moved into cylinder encompassing position tpjclamp a sheet of bonding material around the cylinder and adapted to actas a locat- 4 ing platform for the finfmaterial With respect to thecylinder; and means for;locking said halt-rings incylinder encompassingposition.

i la. Affixturelfor assembling finned'cyl inderspreparatory to theheat-treating operlocating plate adapted to be placed on the cylinder infixed relation thereto; and means cooperating ith the locating plate,the clamping means and the finm'aterial there- I betweenpfor locatingthe material relative to the engine cylinder; i I

' 15. Apparatus for the manufacture of finned cylinders comprising, incombination, as ipport including a base and a central post over Whichthe cylinder is adapted to fit; means'supported on the base forpermitting the cylinder to be located inonly oneposil tion relative tothe base; means adapted to clainpa sheet of bonding material about the 7cylinder and for-providing itPlZLiIEOlIH for longitud nally locating thefin material rela tive to the cylinder, said means having a plurality oflocating holes a plate sup-- ported by the base and.havingholescorresponding to the holes in the bonding material clampingmeans,said. plate being adapted to be moved in position above the" basepost so that the holes thereof are in alignment with the holes in theclamping means; and pins adapted to be inserted-in the holes ofthe plateand clamping means and to extend adjacent tofthe fin material forlocating thefin inaterialrelative to the engine cylinder. 7

16. Apparatus for the manufacture of finned cylinders comprising, incombination,

a cylinder s upport; means for clamping a said binding deviees securedabout the sheet of bonding material about the cylinder fin m riali- 10and for supporting a quantity of fin ma- VI I test mony whereof I heretoaifix my terial placed about tlie'cylinder; and means g t v adapted tobe moved into proximity with 7 CHARLES L. LEE. the fin material andprovided Withmeans for Witnesses: v temporarily holding binding devicesin GEOKE. PASCO,

spaced relation With the lin material While WMQ P. PAs co.

